NJG1522KB2
- 1 -
SPDT SWITCH GaAs MMIC
n
GENERAL DESCRIPTION
n
PACKAGE OUTLINE
NJG1522KB2 is a GaAs SPDT switch suited for RF
receiving circuit of cellular phone handsets.
This switch features very low loss, high isolation and
exhibits wide operating frequency range from 50MHz to
3.0GHz at low voltage of 2.5V.
The ultra small & ultra thin FLP6 package is applied.
n
FEATURES
l
Single low voltage control
+2.5~+6.5V
l
Low insertion loss
0.3dB
typ. @f=1GHz, P
in
=0dBm
0.5dB
typ. @f=2GHz, P
in
=0dBm
l
High isolation
27dB
typ. @f=1~2GHz, P
in
=0dBm
l
Handling power
20dBm max. @f=2GHz, V
CTL
=2.7V
l
Low current consumption
8uA
typ. @f=2GHz, P
in
=10dBm
l
Ultra small & ultra thin package
FLP6-B2 (Mount Size: 2.1x2.0x0.75mm)
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PIN CONFIGURATION
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TRUTH TABLE
V
CTL1
H
L
L
H
V
CTL2
L
H
L
H
PC-P1
ON
OFF
Insertion Loss=17dB
P1 Return Loss=-2dB
Insertion Loss=18dB
P1 Return Loss=-2dB
PC-P2
OFF
ON
Insertion Loss=17dB
P2 Return Loss=-2dB
Insertion Loss=18dB
P2 Return Loss=-2dB
"H"=V
CTL (H),
"L"=V
CTL (L)
NJG1522KB2
NOTE: The values in the table are typical value of insertion loss and return loss.
KB2 Type
Top view
3
2
1
4
5
6
Pin connection
1.P1
2.GND
3.P2
4.V
CTL2
5.PC
6.V
CTL1
Orientation Mark
NJG1522KB2
- 2 -
n
ABSOLUTE MAXIMUM RATINGS
(T
a
=25C, Z
S
=Z
l
=50
)
PARAMETERS
SYMBOL
CONDITIONS
RATINGS
UNITS
Input Power
P
in
V
CTL (L)
=0V, V
CTL (H)
=2.7V
28
dBm
Control Voltage
V
CTL
V
CTL (H)
- V
CTL (L)
7.5
V
Power Dissipation
P
D
450
mW
Operating Temp.
T
opr
-30~+85
C
Storage Temp.
T
stg
-55~+125
C
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ELECTRICAL CHARACTERISTICS
(V
CTL (L)
=0V, V
CTL (H)
=2.7V, Z
S
=Z
l
=50
, C6=10pF, T
a
=25C)
PARAMETERS
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Control voltage (Low)
V
CTL (L)
-0.2
0
0.2
V
Control voltage (High)
V
CTL (H)
2.5
2.7
6.5
V
Control current
I
CTL
f=2.0GHz, P
in
=10dBm
-
8
14
uA
Insertion loss 1
LOSS1
f=1.0GHz, P
in
=0dBm
-
0.3
0.6
dB
Insertion loss 2
LOSS2
f=2.0GHz, P
in
=0dBm
-
0.5
0.8
dB
Isolation 1
(PC-P1, PC-P2, P1-P2)
ISL1
f=1.0GHz, P
in
=0dBm
25.5
27
-
dB
Isolation 2
(PC-P1, PC-P2, P1-P2)
ISL2
f=2.0GHz, P
in
=0dBm
25
27
-
dB
Pin at 1dB
compression point
P
-1dB
f=2.0GHz
20
24
-
dBm
VSWR
(PC, P1, P2)
VSWR
f=0.05~2.2GHz, ON State
-
1.3
1.6
Switching time
T
SW
f=0.05~2.5GHz
-
20
-
ns
NJG1522KB2
- 3 -
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TERMINAL INFORMATION
No.
SYMBOL
DESCRIPTIONS
1
P1
RF port. This port is connected with PC port by controlling 6
th
pin (V
CTL (H)
)
to 2.5~6.5V and 4
th
pin(V
CTL(L)
) to -0.2~+0.2V. An external capacitor is
required to block the DC bias voltage of internal circuit. (50~100MHz:
0.01uF, 0.1~0.5GHz: 1000pF, 0.5~2.5GHz: 56pF)
2
GND
Ground terminal. Please connect this terminal with ground plane as close
as possible for excellent RF performance.
3
P2
RF port. This port is connected with PC port by controlling 4
th
pin(V
CTL(H)
)
to 2.5 6.5V and 6
th
pin(V
CTL(L)
) to -0.2~+0.2V. An external capacitor is
required to block the DC bias voltage of internal circuit. (50~100MHz:
0.01uF, 0.1~0.5GHz: 1000pF, 0.5~2.5GHz: 56pF)
4
V
CTL2
Control port 2. The voltage of this port controls PC to P2 state. The `ON'
and `OFF' state is toggled by controlling voltage of this terminal such as
high-state (2.5~6.5V) or low-state (-0.2~+0.2V). The voltage of 6
th
pin
have to be set to opposite state. The bypass capacitor has to be chosen
to reduce switching time delay from 10pF~1000pF range.
5
PC
Common RF port. In order to block the DC bias voltage of internal circuit,
an external capacitor is required. (50~100MHz: 0.01uF, 0.1~0.5GHz:
1000pF, 0.5~2.5GHz: 56pF)
6
V
CTL1
Control port 1. The voltage of this port controls PC to P2 state. The `ON'
and `OFF' state is toggled by controlling voltage of this terminal such as
high-state (2.5~6.5V) or low-state (-0.2~+0.2V). The voltage of 4
th
pin
have to be set to opposite state. The bypass capacitor has to be chosen
to reduce switching time delay from 10pF~1000pF range.
NJG1522KB2
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ELECTRICAL CHARACTERISTICS
(0.1~3.0GHz, with Application circuit, Losses of external circuit are excluded)
-2
-1.6
-1.2
-0.8
-0.4
0
0
0.5
1
1.5
2
2.5
3
Insertion Loss (dB)
Frequency (GHz)
PC-P1 Insertion Loss vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,Pin=0dBm)
-2
-1.6
-1.2
-0.8
-0.4
0
0
0.5
1
1.5
2
2.5
3
Insertion Loss (dB)
Frequency (GHz)
PC-P2 Insertion Loss vs. Frequency
(V
CTL1
=0V,V
CTL2
=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
0
0.5
1
1.5
2
2.5
3
Isolation (dB)
Frequency (GHz)
PC-P1 Isolation vs. Frequency
(V
CTL1
=0V,V
CTL2
=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
0
0.5
1
1.5
2
2.5
3
Isolation (dB)
Frequency (GHz)
PC-P2 Isolation vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,Pin=0dBm)
1
1.4
1.8
2.2
2.6
3
0
0.5
1
1.5
2
2.5
3
VSWR
Frequency (GHz)
PC-P1 VSWR vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,PC port)
1
1.4
1.8
2.2
2.6
3
0
0.5
1
1.5
2
2.5
3
VSWR
Frequency (GHz)
P1-PC VSWR vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,P1 port)
NJG1522KB2
- 5 -
10
15
20
25
30
0
2
4
6
8
10
12
10
15
20
25
30
Pout
P-1dB
ICTL
loss
Output Power (dBm)
ICTL (uA)
Input Power (dBm)
P-1dB=24.6dBm
1
1.4
1.8
2.2
2.6
3
0
0.5
1
1.5
2
2.5
3
VSWR
Frequency (GHz)
P2-PC VSWR vs. Frequency
(V
CTL1
=0V,V
CTL2
=2.7V,P2 port)
Pin vs. Pout, ICTL and Loss
n
ELECTRICAL CHARACTERISTICS
(with application circuit, without DC Blocking Capacitor, Losses of external circuit are excluded)
0
0.2
0.4
0.6
0.8
1
-50
0
50
100
VCTL=2.5V
VCTL=2.7V
VCTL=3.0V
VCTL=3.5V
VCTL=5.0V
VCTL=6.5V
Insertion Loss (dB)
Ambient Temperature (
o
C)
Insertion Loss vs. Ambient Temperature
(PC-P1 port, fin=2GHz, VCTL(L)=0V)
15
20
25
30
-50
0
50
100
VCTL=2.5V
VCTL=2.7V
VCTL=3.0V
VCTL=3.5V
VCTL=5.0V
VCTL=6.5V
Isolation (dB)
Ambient Temperature (
o
C)
Isolation vs. Ambient Temperature
(PC-P1 port, fin=1GHz, VCTL(L)=0V)
0
5
10
15
20
25
30
35
-50
0
50
100
VCTL=2.5V
VCTL=2.7V
VCTL=3.0V
VCTL=3.5V
VCTL=5.0V
VCTL=6.5V
Control Current (uA)
Ambient Temperature (
o
C)
ICTL vs. Ambient Temperature
(PC-P1 port, fin=1GHz, VCTL(L)=0V)
RF
21.4n
VCTL
Switching Speed
(V
CTL (L)
=0V, V
CTL (H)
=2.7V)
Trig'd
625mV
100mV
/div
-375mV
-13.8nF
86.2nF
10ns/div
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